AK4562VN Asahi Kasei Microsystems, AK4562VN Datasheet - Page 24

• Manufacturer Part Number: AK4562VN
• Description: LOW POWER 20BIT CODEC WITH PGA
• Manufacturer: Asahi Kasei Microsystems

ASAHI KASEI
MS0031-E-00
S C K
D4
S S I
SCK
0
1
0
1
0
1
0
0
1
SSI
Write command
Device code
Instruction code
Data write
is fixed to 05H in the AK4562.
PDN = “L” at power-on, SSB I/F is enabled by writing command (including NOP) of a appointed device code
and accepts data WRITE ever since.
the data is written as the address. The control data is sent in the other case.
When D/C bit is “1”, 8 bit data after information bits indicates a command.
D0-3 bits are the device code, the bus can be connected to maximum 16 devices, however, and the device code
The following instruction is set by D4-D7 bits.
SSB I/F becomes disable by PDN = “L”, it is set to address = “00H”, AHOLD mode. Therefore, after exiting
When D/C bit is “0”, 8 bit data after the information bits indicates Data. If ADRSL command is sent just before
Instruction Code
D5
0
0
1
1
0
0
1
1
1
- - - - -
D 0 - D 3 :
D 0 - D 7 :
D0-D7: Address or Control Data
S T W R
D6
ST WR
0
0
0
0
0
1
1
1
1
1
0
1
1
D e v i c e C o d e
Instruction Code
D7
0
0
0
0
0
0
0
1
1
C
2
D
2
D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
D0 D1 D2 D3 D4 D5 D6 D7
3
3
RESET
ADRSL
NOP
AINC
ADEC
AHOLD
NOP
RESET
Command
Figure 19. Write Command Timing
4
4
Figure 20. Data Write Timing
5
Table 6. SSB Instruction
5
6
6
Only the contents of control register are reset.
When the next data is data write, the address is sent.
If not so, this command is invalidated.
Invalidity
Auto increment mode of address
Holds this state until sending the next ADEC and AHOLD.
Auto decrement mode of address
Holds this state until sending the next AINC and AHOLD.
Fixed mode of address
Holds this state until sending the next AINC and ADEC.
Invalidity
Only the contents of control register are reset.
7
7
- 24 -
8
8
9
9
10
1 0
11 12 13
11
1 2
Function
Internal Write Timing
Internal W rite Tim ing
1 3
ST WR D
S T W R
0
0
1
1
2
D
2
[AK4562]
2000/05